Table.



W. L. MUENDER.

TABLE. APVPLIUATION FILED APR. 4, 1911.

Patented July 2, 1912.

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MM QN Attorneys MUENDER.

TABLE. APPLICATION FILED APR. 4, 1911.

1,031,659. l Pantea July 2, 1912.

f7 j* i7 if /Z y ZZ l Z W'tnesses vIYWEH'EO rWILLIAM L. MUENDER, or MoNTFoRT, wisconsin;

TABLE.

specification of 'Letters Patent.A

Patented July 2, 1912.?

To all whom z't may concern Be it known that' I, WILLIAM L. MUEN- DER, a citizen ofthe United States, residing at Montfort, in the county of Grant and State of Wisconsin, have invented a new and useful Table, of which the following is a specification.

The device forming the subject matter of this application, is a dry concentrato'r, in

which fa'r'eci'procating casing is provided with' suitable'a'in-blast mechanism, whereby the 'gangue may be forced upwardly, 'permitting the o're to travel along the table, the

gangue ultimately passing oft'l the end4 of table, and the ore being .drawn away vlaterally, at successive steps 1n the concentrating operation, through suitable valve-controlled ore spouts, provided for the purpose. One object of the present invention 1s vto provide novel means for disposing of the :ore at successive steps in theoperation, and

to provide novel means for separating the gangue'from the o're.

Another' object of the'invention is to improve generally',` and to increase the eiiiciency of, devices of the type to which this invention apper'tai'ns. y

Vith the foregoing and other objects in view which will appear as the description proceeds, the4 invention resides in the combinat-ion and arrangement of parts and in the details of construction hereinafter described and claimed, it 'being understood that changes in the precise embodiment of invention herein disclosed can be made within the scope of what is claimed without'dc-y parting from the spirit of the invention.

In the drawings,-Figure .1 is a vertical longitudinal section, Where-in sundry parts appear in elevation; Fig. 2 is a top plan; Fig. 3 is a transverse section upon the line A-B of Fig. 1; Fig. 4 is 'a transverse section on the line C-D of Fig. 1; and Fig. 5 is a fragmental longitudinal section.

In carrying out the invention there is,A

provided, a primary andfundamental element, a box-like casing 1, open at the top, but otherwise closed. Upon the bottom 2 of the casing 1, there are suitable bearings 3, in which are pivoted the upper ends of supports 4, the lower ends of the supports 4 being pivoted upon pillow blocks 5. Iivotally connected with the casing 1, adjacent one end thereof, is a pitman 6, connected with a crank shaft 7, mounted up 1v1/a suitl 1', in the interior of the same.

l1s crossed, adjacent its upper edge, by a,L plurality of sills 11, supporting a mesh."

Application led April 4, 1911. 'Serial No. 618,855.

being provided, whereby the shaft' 7 may be rotated, reciprocating motion being thus imparted totheeasing 1.

le plurality of'transversely disposed par-r titions 10 .extend entirely across the casing The casing work table 12. As clearly shown in Fig. 5, and there denoted by the numeral 14 the mesh work 12 terminates short of each partition 10, thus providing 'for the insertion, between the end of the mesh'work 12 and the partition 10, of an ore spout' 15. These ore spouts 15 extend through one of the' side walls of the'easing 1, as denoted by the nume'ral 16 in Fig. 3. v-

\ Mounted for vertical reciprocation in the spouts 15, are gates 16, extended entirely across the l'casing 1. A means is provided for raising and vlowering each of these gates 16, this means preferably consisting of' a screw 17, threaded for rotation in a bracket 18, secured to the side walls of the casing 1, the lower end of each screw 17 being rotatable in the gate 16.

An air-blast pipe 19 enters each of the compartments defined by the partitions 10, these air-blast pipes 19 being preferably extended upwardly through the bottom 2 of the casing 1. Above the discharge ends of the blast ,pipes 19, dellectors 2O are mounted. f

The invent-ion further includes a plurality of rill'les, each rillle consisting of transverse members 21, having suitable openings .22 theretln-ough, to provide for the passage of the ore from one end of the casing to the ol her, when the casing is reciprocating. Each of the transverse members 21 is preferably alincd with, and rests upon, one of the sills able support 8, a belt wheel 9 or the like,

1lI which connect the side walls of thc casing. Superposed upon the transverse n1en1 bers 21, and extended lngitudinally of the casing are ritlies 23. Each of the rillles thus formed,lis equipped with a pair of transverse bars 24, the ends of which project beyond the side walls of the casing 1, the bars 24 resting in suitable notches 25 in the side walls of the casing 1. There are lugs 26, upon the side Walls of the casing 1,v and through these lugs 2G, and through the protruding ends of the bars 24, seem-ing bolts 27 are passed, whereby -the rillles may be held upon the casing. Each ritlle, of

course, is of sutlicient length to Aextend from one of the partitions l() to the other.

In practical operation`the ore which is to be concentrated, is deposited upon that end of the apparatus to which the-reference character X is applied in Fig. 1. When a reciprocatory motion is imparted to the casing 1, through the instrumentality of the pitman 6, the ore will travel longitudinally of the casing, until the gate 16 is-encountered. lVhile the ore is thus traveling toward .the gate 16, the air-blast, entering the pipe 19, will force the gangue upwardly, the gangue traveling longitudinally of the casing, between the members 23. The heaviest portions of the ore, passing through the openings 22 in the members 21, will come to rest against the tirst gate 16', ,I

which gate may readily be raised, by manipulating the members 17 ,permitting the heaviest portions to pass into the spout 15,

the bottom of which is inclined, lso as to deliver the heaviest portion of the concentrate, upon. one side of the casing. The gangue which is upheld by the air-blast will, together with some of the heavier portions of the concentrate, pass upon the next section of the concentrator, where the process above,

referred to will be repeated, another heavy portion of` the concentrate being drawn away through the second ore spout 15.` It will be understood that any number of partitions 10 and spouts l5 may be provided, so that when, at last, the rear end 'of the casing 1 is reached, the gangue alone will remain, the gangue passing away over that end of the structure to which the reference character Y is applied in Fig. 1, all of the heavier, commercially valuable portions of the concentrate, having been drawn away by the ore spouts 15.

Haying described the invention, what .is claimed is t* l. In a device of the class described, a box-like casing; a mesh-work member eX- tended thereacross; ore riitles disposed transversely of the casing and resting upon the mesh-work member, the riilles having openskimmers disposed upon the rililes and eil( tended longitudinally of the casing; an/rrefy spout secured to the partition, in close 'prox-f ,imity to the last rittle of the series; ya gate,

operating in the ore spout, the gate'consti f' tuting a closure for the openings in thelast riiile of the series, thereby to prevent the ore from passing into the spout, the gate likewise constituting a'means for bridging the space between the last ritlie and the partition, whereby the ganguemaypass across the top of the gate, and across the top of the partition.

box-like casing; a transverse partition therein; an orespout secured to one side of the partition; sills disposed transversely ofthe 2. In a device of the class described, a

casing, onl both sides of the partition; meshwork coverings supported upon the sills one' of said coverings being bound by one of the sills; against the ore spout, the other of Asaid coverings being bound by another of the sills, against the partition; riiiles resting upon the sills; and a gate operating in the ore spout. i l

3. In a device of .the class described,l a casing; transverse sills therein; transverse partitions in the casing, dividing the-casing into a plurality of compartments; anv airblast for each compartment; an ore lspout secured to each partition and held against movement by one of the sills; mesh-work coverings above the sills; ritlies resting upon the sills above the mesh-work coverings; a gate adapted to' operate in each ore V 

